Used a few times in the city. Never used in the mountains. I bought it as an ultra-lightweight backpack, mostly without putting anything in it, but it didn't match my usual clothes as much as I thought it would, so I'm putting it up for sale. There aren't any noticeable stains or scratches, but please consider purchasing it with the understanding that it is a used item. The back pad is "Breathable Pad for MINI". The Pack Liner is missing, as I threw it away.